High Volume SMS app logo
High Volume SMS App for RingCentral
by RingCentral Labs

Quickly reach your customers using SMS at up to a 98% open rate and 7x engagement compared to email.

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High Volume SMS App for RingCentral app integration

Check out our newest version, now available for all RingCentral SMS enabled numbers!

Reach your customers on their mobile devices using SMS for appointment reminders, alerts, marketing promotions, and much more. 

The High Volume SMS App allows you to send thousands of custom SMS messages to customers and opt-in lists using any RingCentral High Volume SMS enabled number.

Send up to 250,000 messages per day with the ability to copy and paste numbers or upload a multi-column CSV for templated messages. Before sending you will see the estimated number of messages and cost associated with your send (the app is free, the only cost is the actual cost of the SMS messages).

Upon sending your SMS, you’ll receive real-time updates in the app, along with a report that details the status of each message sent, or why it could not be delivered (ie. sent message to a landline). High Volume SMS is currently available in the US and Toll Free only in CA.


1. Browser (Firefox, Chrome, Mozilla, and Safari)

2. RingCentral High Volume SMS enabled number


Navigate to the URL: https://www.sms-campaigns.com/ login and start using the app.

About RingCentral Labs

RingCentral Labs is a program that lets RingCentral engineers, platform product managers and other employees share RingCentral apps they've created with the customer community. RingCentral Labs apps are free to use, but are not official products, and should be considered community projects - these apps are not officially tested or documented. For help on any RingCentral Labs app please consult each project's GitHub Issues message boards - RingCentral support is not available for these applications.